Illustrative Mathematics - Geometry - Unit 5 - Lesson 2 - Formative Library | Library

Select all figures for which there exists a direction such that all cross sections taken at that direction are congruent.

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Name 2 figures for which a circle can be a cross section.

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Sketch the solid of rotation formed by rotating the given two-dimensional figure using the dashed vertical line as an axis of rotation.

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Draw a two-dimensional figure that could be rotated using a vertical axis of rotation to give the cone shown.

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A regular hexagon and a regular octagon are both inscribed in the same circle. Which of these statements is true?

The perimeter of the hexagon is less than the perimeter of the octagon, and each perimeter is less than the circumference of the circle.

The perimeter of the octagon is less than the perimeter of the hexagon, and each perimeter is less than the circumference of the circle.

The perimeter of the hexagon is greater than the perimeter of the octagon, and each perimeter is greater than the circumference of the circle.

The perimeter of the octagon is greater than the perimeter of the hexagon, and each perimeter is greater than the circumference of the circle.

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Match each trigonometric function to a ratio. You may use ratios more than once.

tan(A)
tan(B)
cos(A)
cos(B)
sin(A)
sin(B)

\frac{y}{z}
\frac{x}{z}
\frac{x}{y}
\frac{y}{x}

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10.

Explain how you know lines m and l are parallel.

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This lesson is from Illustrative Mathematics. Geometry, Unit 5, Lesson 2. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/2/5/2/index.html ; accessed 29/July/2021.

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